Skin The skin tends to become thinner, less elastic, drier, and finely wrinkled. However, exposure to sunlight over the years greatly contributes to wrinkling and to making the skin rough and blotchy. People who have avoided exposure to sunlight often look much younger than their age. The skin changes partly because the aging body produces less collagen (a tough, fibrous tissue that makes skin strong) and elastin (which makes skin flexible). As a result, the skin tears more easily. The fat layer under the skin thins. This layer acts as a cushion for the skin, helping protect and support it. The fat layer also helps conserve body heat. When the layer thins, wrinkles are more likely to develop, and tolerance for cold decreases. The number of sweat glands and blood vessels decreases, and blood flow in the deep layers of the skin decreases. As a result, the body is less able to move heat from inside the body through blood vessels to the surface of the body. Less heat leaves the body, and the body cannot cool itself as well. Thus, the risk of heat-related disorders, such as heatstroke, is increased. Also, when blood flow is decreased, the skin tends to heal more slowly. The number of pigment-producing cells (melanocytes) decreases. As a result, the skin has less protection against ultraviolet (UV) radiation, such as that from sunlight. Large, brown spots (age spots) develop on skin that has been exposed to sunlight, perhaps because the skin is less able to remove waste products. The skin is less able to form vitamin D when it is exposed to sunlight. Thus, the risk of vitamin D deficiency increases. Source:MerckManuals

Eyes and Ears With age, you might have difficulty focusing on objects that are close up. You might become more sensitive to glare and have trouble adapting to different levels of light. Aging also can affect your eye’s lens, causing clouded vision (cataracts). Your hearing also might diminish. You might have difficulty hearing high frequencies or following a conversation in a crowded room. What you can do To promote eye and ear health:

Take precautions. Wear sunglasses or a wide-brimmed hat when you’re outdoors, and use earplugs when you’re around loud machinery or other loud noises. Source:MayoClinic

Hair Childbirth, certain medications, and stress all can cause temporary hair loss, but hormonal shifts that happen around menopause may lead to permanent thinning. At home: Beginning from the scalp, gently pull a small hank of hair all the way to the tips of the hair. If more than six hairs come out, you have a thinning problem. Dexter Phillip, owner of New York City’s DEX salon, recommends Esuchen Hair Care products to add body and shine. Another option: Rogaine, which is available over the counter. At the doc’s: Ask for blood tests to rule out lupus, thyroid disease, or anemia. Hair loss is often a sign that something else is wrong, so take it seriously. Source:Health

Height By age 80, it’s common to have lost as much as 2 in. (5 cm) in height. This is often related to normal changes in posture and compression of joints, spinal bones, and spinal discs. Source:webMD